HomeLouisianaSt. Tammany Parish
St. Tammany Parish, Louisiana: commercial real estate data.
St. Tammany Parish, Louisiana had an estimated 277,615 residents on July 1, 2024, up 4.9 percent since the 2020 census base of 264,573, across 846 square miles. County output reached $17.38 bn in 2024, 7,101 establishments operate here, and the SBA record carries 289 7(a) approvals worth $167.1 m since FY2020.
Underlined figures are computed by MMCG Analytics, not published by the agency.
St. Tammany Parish
How many people live in St. Tammany Parish
- Population, American Community Survey 2020-2024272,421
- Households105,082
- Average household size2.59
- Median household income$81,202
- Median age40.5
- Median gross rent$1,332 per month
- Median owner-occupied home value$284,000
- Home value to household income3.5 times
- Annual rent as a share of median income19.7 percent
- Adults 25 and over with a bachelor degree or higher37.7 percent
- Adults 25 and over with a graduate degree13.4 percent
- Adults 25 and over187,382
- Population under 1864,297
- Share under 1823.6 percent
- Population 65 and over50,238
- Share 65 and over18.4 percent
- Working age population, 18 to 64157,886
- Civilian labor force134,304
- Unemployment rate4.8 percent
- Labor force participation, adults 18 and over64.5 percent
- Rank by population among Louisiana parishes4th of 64
- Rank by population among US county-equivalents, Puerto Rico included264th of 3,222
St. Tammany Parish is the 4th largest of 64 Louisiana parishes by population. A median home costs 3.5 times median household income, which is moderately unaffordable by national standards. Residents under 18 outnumber those 65 and over, at 23.6 percent against 18.4 percent, a household formation profile rather than a retirement one.
US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
St. Tammany Parish
Is St. Tammany Parish's population growing?
- Population, July 1, 2024277,615
- Census 2020 base population264,573
- Population change since the 2020 census base4.93 percent
- Population change, 2023 to 20241,814
- Births, 20242,799
- Deaths, 20242,663
- Natural change, 2024136
- Net domestic migration, 2024591
- Net international migration, 20241,091
- Total net migration, 20241,682
- Cumulative net domestic migration, 2021 to 20249,295
- Rank by growth among US county-equivalents543rd of 3,144
The county has grown 4.93 percent since the 2020 census base. The population grew in 2024 from both sources: births exceeded deaths and more people moved in than left.
US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.
St. Tammany Parish
Where are people moving to St. Tammany Parish from?
- Tax returns filed by households arriving6,820
- People arriving, from those returns13,056
- Tax returns filed by households leaving6,248
- Net household movement572
- Adjusted gross income arriving$520.3 m
- Net adjusted gross income movement$78.7 m
- Average income of an arriving household$76,288
- Average income of a leaving household$70,683
- Largest single originJefferson Parish (1,240 households)
- Largest single destinationTangipahoa Parish (645 households)
| Origin | Households | People | Adjusted gross income |
|---|---|---|---|
| Jefferson Parish | 1,240 | 2,364 | $85.3 m |
| Orleans Parish | 1,113 | 2,168 | $86.2 m |
| Tangipahoa Parish | 471 | 877 | $26.0 m |
| East Baton Rouge Parish | 201 | 314 | $14.0 m |
| St. Bernard Parish | 195 | 403 | $10.6 m |
| Washington Parish | 167 | 317 | $6.3 m |
| Pearl River County | 126 | 225 | $5.2 m |
| Hancock County | 106 | 215 | $4.7 m |
Households arriving report $5,605 more average income than households leaving, so the migration is raising local spending power rather than just moving it around. The largest single source of arrivals is Jefferson Parish, which is the catchment a retail or multifamily study should look at first.
US Internal Revenue Service, Statistics of Income county migration flows, 2021 to 2022 filing years.
St. Tammany Parish
What is the St. Tammany Parish economy?
- County GDP, 2024$17.38 bn
- County GDP, 2023$16.60 bn
- GDP change, 2023 to 20244.7 percent
- GDP change over five years35.0 percent
- Rank by GDP among the Louisiana areas BEA publishes7th of 64
- Rank by GDP among the US county areas BEA publishes291st of 3,127
- GDP per resident$63,807
Output grew 4.7 percent in the latest year and 35.0 percent over five, which is the trend line a lender will read behind any single year figure.
US Bureau of Economic Analysis, Regional, table CAGDP2, CAGDP2, through 2024.
St. Tammany Parish
Employment by industry in St. Tammany Parish
- Covered employment, annual average96,674
- Establishments reporting10,927
- Average annual pay$59,351
- Average weekly wage$1,141
- Health care and social assistance, employment15,365
- Health care and social assistance, average annual pay$55,353
- Retail trade, employment12,990
- Retail trade, average annual pay$35,657
- Accommodation and food services, employment12,195
- Accommodation and food services, average annual pay$22,201
- Professional, scientific and technical services, employment6,247
- Professional, scientific and technical services, average annual pay$81,958
- Construction, employment5,611
- Wholesale trade, employment4,264
| Sector | Employment | Establishments | Average annual pay |
|---|---|---|---|
| Health care and social assistance | 15,365 | 1,366 | $55,353 |
| Retail trade | 12,990 | 1,070 | $35,657 |
| Accommodation and food services | 12,195 | 838 | $22,201 |
| Professional, scientific and technical services | 6,247 | 1,768 | $81,958 |
| Construction | 5,611 | 1,008 | $69,682 |
| Wholesale trade | 4,264 | 821 | $107,069 |
| Administrative and support and waste management services | 4,184 | 730 | $51,923 |
| Transportation and warehousing | 3,396 | 281 | $83,559 |
Health care and social assistance is the largest private sector at 15,365 jobs, 15.9 percent of covered employment.
US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.
St. Tammany Parish
How many businesses are in St. Tammany Parish?
- Establishments, all industries7,101
- Employment at those establishments86,457
- Annual payroll$4.67 bn
- Establishments per 1,000 residents26.1
These are counts of establishments physically operating in the county, not listings, so they are the supply side a feasibility study measures demand against. County Business Patterns counts private establishments with paid employees in March 2023, while the Quarterly Census of Employment and Wages above counts every unemployment-insured employer, public ones included, as a 2024 annual average, so the two establishment and employment counts differ.
US Census Bureau, County Business Patterns, 2023.
St. Tammany Parish
Building permits in St. Tammany Parish
- Housing units authorized by permit, 20241,066
- Declared construction value permitted$361.1 m
- Single family units authorized1,062
- Multifamily units authorized4
- Multifamily share of units0.4 percent
- Average declared value per unit$338,787
- Units authorized per 1,000 households10.1
Single-family homes are 99.6 percent of units authorized, so the pipeline is predominantly single-family.
US Census Bureau, Building Permits Survey, 2024 annual.
St. Tammany Parish
SBA loans in St. Tammany Parish (7(a) and 504)
- 7(a) approvals recorded289
- 7(a) gross approval dollars$167.1 m
- Average 7(a) approval$578,161
- Median 7(a) approval$250,000
- 10th percentile approval$40,000
- 90th percentile approval$1,500,000
- Largest single approval$5,000,000
- Jobs reported supported, 7(a)4,387
- Jobs per approval15.2
- Distinct 7(a) lenders active52
- Distinct industries receiving approvals120
- Median 7(a) term120 months
- Share of loans on real estate terms, 240 months or longer16.6 percent
- Loans on real estate terms48
- Loans on working capital terms, 120 months or shorter205
- Franchise loans49
- Franchise share of approvals17.0 percent
- Leading industry by approval countFull-Service Restaurants (27)
- Most active lenderAmerican Bank (67)
- 504 approvals recorded22
- 504 gross approval dollars$23.1 m
- Average 504 approval$1,048,682
- Median 504 approval$640,000
- Distinct CDCs active6
- 504 jobs per approval18.0
- 504 jobs per million dollars approved17.2
- Most active CDCNew Orleans Regional Business Development Loan Corporation (9)
- Combined SBA approval dollars, 7(a) FY2020 to FY2026 and 504 FY2010 to FY2026$190.2 m
The average approval of $578,161 sits well above the median of $250,000, pulled up by a few larger deals, so the median is the better guide to what a typical borrower here gets. Only 16.6 percent of approvals run on real estate terms, so SBA credit here is mostly working capital and equipment rather than property acquisition.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30. US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.
St. Tammany Parish
SBA loan default and charge-off rates in St. Tammany Parish
Do SBA loans in St. Tammany Parish get paid back?
- Loans with a final outcome recorded54
- Paid in full47
- Charged off7
- Charge-off rate on resolved loans13.0 percent
- Status: Paid in full47
- Status: Exempt from disclosure192
- Status: Charged off7
- Status: Cancelled29
- Status: Committed, not yet disbursed14
Of the 54 loans that have reached a final outcome, 13.0 percent were charged off. This is computed only over resolved loans, because a loan still running has not yet succeeded or failed and counting it either way would be wrong.
Compare against the national and state SBA charge-off rates, computed the same way over resolved loans only.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
St. Tammany Parish
SBA lending by place in St. Tammany Parish
- Borrower cities with recorded lending12
- Covington, approvals84
- Slidell, approvals82
- Mandeville, approvals69
- Madisonville, approvals26
- Pearl River, approvals9
- Lacombe, approvals7
| Borrower city | Approvals | Gross approval dollars |
|---|---|---|
| Covington | 84 | $47,614,600 |
| Slidell | 82 | $40,817,600 |
| Mandeville | 69 | $46,124,100 |
| Madisonville | 26 | $18,589,800 |
| Pearl River | 9 | $6,351,500 |
| Lacombe | 7 | $1,762,400 |
| Folsom | 4 | $3,507,000 |
| Abita Springs | 4 | $1,655,500 |
| 4 other borrower cities | 4 | $666,000 |
Covington accounts for 84 approvals against 82 in Slidell. County level figures average over that gap, which is why a site decision is made at the submarket rather than the county.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
St. Tammany Parish
How large is St. Tammany Parish?
- Land area846 sq mi
- Rank by land area among Louisiana parishes16th of 64
- Width, east to west43.7 mi
- Height, north to south38.8 mi
- Geographies sharing a boundary6
- Residents per square mile of land322
- Establishments per square mile8.39
US Census Bureau county boundary geometry, TIGER, adjacency computed from shared boundary vertices, TIGER county boundaries. US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year. US Census Bureau, County Business Patterns, 2023.
St. Tammany Parish
Flood risk in St. Tammany Parish
- Participation of the county's own NFIP community St. Tammany Parish, unincorporated areasParticipating, community 225205
- Community Rating System class of the county's own communityClass 7
- Communities in the county in the NFIP Community Status Book9
- Of those, participating in the NFIP9
- NFIP participation rate100.0 percent
- Best Community Rating System class in the county A lower CRS class is a larger flood insurance premium discount.Class 5
- Communities carrying a CRS class4
- Radon levels in St. Tammany Parish, EPA zone predicted average indoor radon screening level less than 2 pCi/LZone 3
The county's own community in the status book, unincorporated St. Tammany Parish (community 225205), participates in the National Flood Insurance Program and carries Community Rating System class 7, a flood insurance premium discount for policies written there. The EPA places St. Tammany Parish in radon zone 3, a predicted average indoor radon screening level less than 2 pCi/L. The zone is a screening prediction for the county and does not substitute for a test at an address. The best Community Rating System class among the county's communities is 5, which carries a flood insurance premium discount for policies written in that community. 100.0 percent of the county's listed communities participate in the National Flood Insurance Program, per Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26.
Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26. US EPA, Map of Radon Zones, county spreadsheet, 2024-05 publication, EPA 402/A-16/001.
Coverage
What this page does not hold.
Traffic counts, zoning and the flood zone at an address are not on this page; they resolve at the address in the platform. How this page was built →
Feasibility studies
When a St. Tammany Parish site needs a document a lender will accept.
The same data layer behind this page is the one the studies are written from. A study for a St. Tammany Parish site starts with the figures you are reading, carrying the same source and period into the credit file.
- Population, American Community Survey 2020-2024272,421
- Households105,082
- Average household size2.59
- Median household income$81,202
- Median age40.5
Common questions
St. Tammany Parish questions, answered from the record.
How many people live in St. Tammany Parish, Louisiana?
The Census Bureau estimates 277,615 residents on July 1, 2024 (US Census Bureau, Population Estimates Program, Vintage 2024). The American Community Survey 2020-2024 five-year estimate is 272,421, in 105,082 households, ranking 4th of 64 Louisiana counties. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
Is St. Tammany Parish's population growing?
The population has grown 4.93 percent since the 2020 census base of 264,573, to 277,615 on July 1, 2024. In 2024 there were 2,799 births against 2,663 deaths, with net migration of 1,682. Source: US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.
What is the median household income in St. Tammany Parish?
$81,202. The median owner-occupied home is valued at $284,000, which is 3.5 times income, and median gross rent is $1,332 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
How many businesses are in St. Tammany Parish?
7,101 establishments, employing 86,457 people with an annual payroll of $4.67 bn. These are establishments physically operating in the county, not listings. Source: US Census Bureau, County Business Patterns, 2023.
What is employment by industry in St. Tammany Parish?
Health care and social assistance is the largest private sector at 15,365 jobs, 15.9 percent of covered employment. Covered employment averages 96,674 jobs at an average annual pay of $59,351, or $1,141 a week. Source: US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.
How much SBA lending happens in St. Tammany Parish?
289 7(a) approvals totaling $167.1 m since FY2020, across 52 lenders, with a median approval of $250,000, plus 22 504 approvals worth $23.1 m since FY2010. These are approvals recorded in the release, not loans disbursed.
Do SBA loans in St. Tammany Parish get paid back?
Of the 54 loans that have reached a final outcome, 47 were paid in full and 7 charged off, a charge-off rate of 13.0 percent. Loans still running are excluded, because they have not yet succeeded or failed.
How many building permits were issued in St. Tammany Parish?
1,066 housing units were authorized by permit in 2024, with a declared construction value of $361.1 m. Multifamily was 0.4 percent of units. Source: US Census Bureau, Building Permits Survey, 2024 annual.
What is the radon zone for St. Tammany Parish?
Zone 3, a predicted average indoor radon screening level less than 2 pCi/L. Source: US EPA, Map of Radon Zones, county spreadsheet, 2024-05 publication, EPA 402/A-16/001.
Where do people moving to St. Tammany Parish come from?
The largest single origin is Jefferson Parish, with 1,240 households. Arriving households report an average income of $76,288 against $70,683 for those leaving. Source: US Internal Revenue Service, Statistics of Income county migration flows, 2021 to 2022 filing years.
Are traffic counts available for St. Tammany Parish on this page?
No. Annual average daily traffic resolves in the platform rather than in this dataset, so no AADT figure is printed here. It is a gap we know about rather than a figure we estimated.
Is zoning published for St. Tammany Parish?
No. Nothing on this page presents parcel level zoning, and where a statutory framework applies it is marked as the statewide frame, to be confirmed locally.
St. Tammany Parish
Cities and places in St. Tammany.
11 Census places lie wholly or partly in St. Tammany Parish. All 11 carry enough published place level data for a page of their own and are linked.
| Place | Type | Population | SBA 7(a) approvals, projects in this county | Lies in |
|---|---|---|---|---|
| Slidell | city | 28,561 | 82 | Wholly in this county |
| Mandeville | city | 12,946 | 69 | Wholly in this county |
| Covington | city | 11,658 | 84 | Wholly in this county |
| Eden Isle | CDP | 7,683 | None recorded | Wholly in this county |
| Lacombe | CDP | 6,310 | 7 | Wholly in this county |
| Abita Springs | town | 2,699 | 4 | Wholly in this county |
| Pearl River | town | 2,614 | 9 | Wholly in this county |
| Madisonville | town | 869 | 26 | Wholly in this county |
| Folsom | village | 709 | 4 | Wholly in this county |
| Lewisburg | CDP | 484 | None recorded | Wholly in this county |
| Sun | village | 381 | None recorded | Wholly in this county |
A further 4 of the county's 289 SBA 7(a) approvals are to borrowers in cities that match no Census place in St. Tammany Parish, the largest being Orange City (1), Baton Rouge (1), Bush (1). Those are postal cities, unincorporated areas and cities outside the county, so no place row claims them; they are counted in the county total above.